The Collaborative International Dictionary of English v.0.48:

Cushion \Cush"ion\ (k[oo^]sh"[u^]n), v. t. [imp. & p. p.
   Cushioned (-[u^]nd); p. pr. & vb. n. Cushioning.]
   1. To seat or place on, or as on a cushion.
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            Many who are cushioned on thrones would have
            remained in obscurity.                --Bolingbroke.
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   2. To furnish with cushions; as, to cushion a chaise.
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   3. To conceal or cover up, as under a cushion.
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   Cushioned hammer, a dead-stroke hammer. See under
      Dead-stroke.
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